CTRL + ALT + F1 show nothing

view story

http://askubuntu.com – First of all sorry for my bad english. I have installed today Ubuntu 12.04 on my desktop. I have a NVIDIA 8400GS which is giving me a lot of problems. Ubuntu does not take the drivers automatically and then forces me to work in 800 x 600. I tried to install the additional drivers but it did not do anything, it gave me an error after installation and I had to reinstall the system. Now I'm trying to install the drivers manually, but when I go to Console mode, turning off the graphics via CTRL + ALT + F1, the screen remains black and whatever I type, nothing happens. How can I fix? (HowTos)